Yamaha STAR XVS95CE 2DX1 2014 Service Manual page 349

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of mal-
Item
function and check
1 Connection of throttle posi-
tion sensor coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
2 Connection of ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
3 Wire harness continuity.
4 Installed condition of throttle
position sensor.
Check for looseness or
pinching.
15
Throttle position sensor: open or short circuit detected.
Able to start engine
Able to drive vehicle
01
Throttle position sensor signal
• 14–20 (fully closed position)
• 92–102 (fully open position)
• Check with throttle valves fully closed.
• Check with throttle valves fully open.
Maintenance job
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Open or short circuit → Re-
place the wire harness.
Between throttle position
sensor coupler and ECU
coupler.
yellow–yellow
Between throttle position
sensor coupler and joint cou-
pler.
blue–blue
black/blue–black/blue
Between joint coupler and
ECU coupler.
blue–blue
black/blue–black/blue
Improperly installed sensor
→ Reinstall or adjust the
sensor.
Refer to "ADJUSTING THE
THROTTLE POSITION
SENSOR" on page 6-11.
7-36
FUEL INJECTION SYSTEM
Confirmation of service
completion
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 2.
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 3.
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.
Turn the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 5.